Chapter 5
Classification Tasks
“A man provided with paper, pencil, and rubber, and subject to strict discipline, is in effect a universal machine.”
—Alan Turing, “Intelligent Machinery: A Report by A. M. Turing,” 1948
For humans, classification is the act of systematically arranging objects in homogeneous groups according to a number of established criteria. For software applications, it is nearly the same. Machine learning would be no different, except that the number of expected groups gives the problem different connotations, leads to different approaches to the solution, and leads to different algorithms.
In particular, if the number of expected groups in which analyzed objects will be partitioned is exactly two, then the problem goes under ...
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